Filter/sort approach

we develop intranet application, and on the server side we decided to use CMP entity beans as persistence layer. but we have now some problems how to impement sorting/filtering at client side. for expample you can see a list of cars on page in table with some columns user should have possibility to filter data by one ore more columns filter and also order data by one or more columns. and now i have doubt how to provide this functionality in CMP bean i can't write ejbFind method fort all combinations of criteria and ordering user requested how can this problem be solved reasonably?
to perform filterting and sorting on application level?
to use some proprietary solution? (jboss we use provides dynamic
queries)
or is there any other possibilities???
thanx for any help??
PXP Slovakia s.r.o.
Boris Brinza
IT Developer
Kukuricna 1, 831 03 Bratislava, Slovakia

Hi,
You can avoid multiple database calls by storing the results in a Collection and then use Collections.sort everytime the user wants to reorder the data.
As to where you would keep the collection, it would depend on your architecture. If you had a stateful session bean that was handling the user's requests, that would be a good place. Or you could keep it in the servlet session context (not a good idea if you have a huge collection).
Ta ta,
Jagan.

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Hallo,
in den Spalten des Bibliotheksfilter werden die Filterergebnisse aufsteigend sortiert nach dem Wert auf der rechten Seite
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600
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Gruß
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Sorry,
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Plan hash value: 766961720
| Id | Operation                            | Name                | Rows | Bytes | Cost (%CPU)| Time     | Pstart| Pstop |
|   0 | SELECT STATEMENT                     |                     |     1 |    14 | 15614   (1)| 00:03:08 |       |       |
|   1 | SORT AGGREGATE                      |                     |     1 |    14 |            |             |       |       |
|* 2 |   FILTER                             |                     |       |       |            |          |       |       |
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|* 4 |     INDEX RANGE SCAN                 | I_SMY_DT         |   143K|       |   442   (1)| 00:00:06 |       |       |
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| Id | Operation          | Name | Rows | Bytes | Cost (%CPU)| Time     |
|   0 | SELECT STATEMENT   |      |     1 |     2 |     3   (0)| 00:00:01 |
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|   0 | SELECT STATEMENT   |      |     1 |     2 |     3   (0)| 00:00:01 |
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Plan hash value: 2083865914
| Id | Operation          | Name | Rows | Bytes | Cost (%CPU)| Time     |
|   0 | SELECT STATEMENT   |      |     1 |     2 |     3   (0)| 00:00:01 |
|   1 | SORT AGGREGATE    |      |     1 |     2 |            |          |
|   2 |   TABLE ACCESS FULL| EMP |    14 |    28 |     3   (0)| 00:00:01 |
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        20
        10
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|   0 | SELECT STATEMENT   |      |     3 |    15 |     4 (25)| 00:00:01 |
|   1 | HASH GROUP BY     |      |     3 |    15 |     4 (25)| 00:00:01 |
|   2 |   TABLE ACCESS FULL| EMP |    14 |    70 |     3   (0)| 00:00:01 |
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Table Sort/Filter does not include in-memory data

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Filter Key problem in table without ALV

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wd_this->table_method_hndl->apply_filter( ).
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in any case clear the table's filter strings
l_node = wd_context->get_child_node( if_v_2=>wdctx_n_node2 ).
l_node->invalidate( ).
if the filter is off: show the whole shebang
wd_this->table_method_hndl->apply_filter( ).
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Set or cancel the table's filter action
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Set or cancel the table's filter action
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Regards,
Delphi.

ommit

Content Items Sorting based on picklist property fails

Content Server 6.0
We have developed a custom presentation template to display a list of all the work items. While displaying the work items, I would like to sort them based on a property and then filter them based on another property. I have a template code similar to below:
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null

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Af:table filter date format : task-flow navigation issue

hi
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hi
First a short summary of relevant aspects of service request 3-2190488381:
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as can be seen in the screencast at http://screencast.com/t/Nq7TkkRQ
public void clearFilterFields()
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The method-call activity, responsible for clearing the search fields, would need to be called before each task-flow-return activity.
As there can be multiple view activities with multiple filtered tables in a bounded task-flow, would that result in multiple method-call activities responsible for clearing search fields (all to be called before each task-flow-return activity)?
It looks like a more general/generic approach is desirable for the suggested workaround to be feasible.
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thanks
Jan

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Dear Experts,
Im having two columns in my table and im using filter in my table, In onfilter event i written the code
wd_this->table_control->apply_filter( ).
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The following error text was processed in the system EBP : Access via 'NULL' object reference not possible.
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Method: ONACTIONONFILTER of program /1BCWDY/6CS8GWLR56619XU3FP87==CP
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Method: DO_HANDLE_ACTION_EVENT of program CL_WDR_WINDOW_PHASE_MODEL=====CP
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Method: EXECUTE of program CL_WDR_MAIN_TASK==============CP
Method: IF_WDR_RUNTIME~EXECUTE of program CL_WDR_MAIN_TASK==============CP
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Arun.P

Hi,
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Edited by: Tejaswini Chafekar on Aug 27, 2009 2:53 PM

Filter/sort approach

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